William s



W. S. COOPER.

VALVE 000K.

No. 75,376; V Patented Mar. 10, 1.868.

[II/wafer. I J:

gait gaunt ff-it's.

WILLIAM S. COOPER, OF PHILADELPHIA, PENNSYLVANIA.

Letters Patent N0. 75,376, dated March I0, 1868.

IMPROVEMENT IN VALVE-noose,

TO WHOM IT MAY CONCERN:

Be it known that I, WILLIAM S. COOPER, of Philudelphin,Pennsylvnn'ia,,huve invented an Improvement in Valve-Cocks for Steam orW'ater; end I do hereby declare the following to be a full, clear, andexact description of the some, refercnce'being had to the accompanyingdrawings, forming a part of these specifications, and to the letters ofreference marked thereon.

'My invention relates to improvements in that class of valve-cocks inwhich a valve operated by a. screw-l spindle is used for controlling theflow of-woter or steam through the valve-cock and my improvementconsists in the manner in which the valve is guided to its seat, toclose the passuge-wam aud which being done, to waste, if desired, thereturning water or steam from the body of the cock and pipe also in themanner in which]: form a. water' tight snd durable jointbetween thespindle and the cop through which it passes. I

I In order to ennble'others skilled in the art to which this inventionwhites to ake and use my'invcntion, I will now proceed to describe itsconstruction and operation.

In referring to the accompanying drawings, in which similar lettersrefer'to similar parts throughout the several partsl Figure lis n.sectionnllelevction of the valve-cock, showing the arrangement of itsinternal parts. I

Figure 2 is an elevation of the cap,wnste-tube, and part of thescrew-spindle, with the valve drawn up to its full height,and-representing its upper face he closed against its seat, so the cool:cannot waste.

Figure 3 is an elevation of the valve, part being in section, to showthe arrangement oi the elastic valve faces, and one way they may be heldin plcco.

Figure 4 is a plan of the valve, showing at a; the square shank of thesome.

Figure 5 is an under view of the cap, showing the square socket whichreceives the square shank z of the valve, toprevent the rotation of thelatter. b

-As regards the-external shape of the valve-cock, it may be asrepresented, when it is suitcble for the purpose of a stop and waste, ora. different Iorm may be used 'to fit'it for a different purpose.

Construction.

Referring to fig. 1', it is shown that B is the body of the cock, withits inlet I, and outlet 0, and having screwed into it the cap C, thejoint between them heingvmnde tight by the metallic packing Z, whichfits into a recess in the cap 0 made to receive it. The cap 0 isconstructed'with n. screwed chamber in. its upper part, outside of thebody B, and through the bottom of this chamber is o small hole, andbelow this hole, and in the part of the cap which is inside the body B,is another chamber-,M, the lower part of which is made with a squaresocket, as shown in fig. 5, to receive the square shank x of-t he valveN, the object of this being to prevent the rotation of said valve. Onthe lower face of the said cap is a raised seat, W. The spindle is madeonthe top to receive a. suitable handle, and is threaded at its lowerend to fit the screw inside the square shank-210i thevalve N.v Abovethis screw S is u collar, a, on-either side of which are placed.suitublo packings, p and 12'; us shown,which collar and pnckings fitneatly into the upper screwed chamber oftho' cap C, nnd arc pressed toits bottom, and compressed by means ofthe packing-nut D suiiiciently tomake the jpint water-tight. .A hollow bent tube, 1, is fixed in somesuitable manner in a. passage, t, in the cap C, communicating with itschamber M, as shown in fig. 1. The valve Nis constructed withits'twofaces Vnnd W. Its lower face has a flnngcdrecess,

' n, into which is forced the elastic rubber face V; this recess, withits finnge n, protecting the-edges of the rubber from being frayed orrolled over. The rubber-valve face is held in position by thesaidrecessed flange n, and the-screw cl or its equivalent. On the upperside of the valve is another recess, with a. flange formed at itsinneredge the outside edge being plain and straight, and into this recess isforced the elastic packing'W'r Its square shank x, as seen in fig. 4,fits into the square socket of the cap G, and is threaded on the insideto receive the screw S of the spindle H.

Operation.

Whcn it is desired that water or steam shall pass to pipes or reservoirsconnected with the outlet 0, the spindle II is rotated, and, by means ofits screw, thevvslve N, with its elastic face V, is raised from its sentV", and until its fnce'W' is pressed to its sect at the bottom of thecap (3, as shown infig. 2, thus giving ngfull 't, substantially asspecified, nnd'for the purpose described.

passage for water or steam through the body of the cock, and shuttingof! all communication with the chamber M of the cap 0, and thus with thewaste-tube t or passage t.

It is evident that when the valve-face V is returned to its seat V,theupper valve-face W-will be withdrawn from its seat W, as shown infig. 1, and a. free passage will exist between the shank :v of thevalve'lLond the squaresoeketof'the cap G into the chamber M, so that anywater or steam contained in pipes or reservoirs connected with theoutlet 0 may flow freely through said passage to the-said chamber M ofthe cap 0, and escape thence through the waste-tube t. I

I do not propose to confine myself to the method of holding the elasticvalve-packing Vin place, :is indicated I in fig. 1, but may employ aflanged sleeve, in, screwing on the'periphery of the valve N, asindicated in fig. 3.

Nor do I propose to confine myself to the use of the soft-rubbervalve-face V, but may employ, when thought...

desirable, a metallic valve, as when steam ofa high pressure is to bepassed.

I am well aware that valve-cocks have been made in which variousvalve-puckings have been-used, withpr without a packing-nut; and I alsoknow that waste-tubes have been attached to stop-cooks, to conduct thefluid away from above the cock; and, moreover, I know that vnlve-cockshave been made in which a raised seat is used in connection with a softvalve-face, butI know of no other arrangement like the one heredescribed and represented. v i

' I therefore claim as my invention, and desiretosecure by LettersPotent v The combination of the valve 71, spindle H, with its screw S;the cap 0 with its chamber M and waste-passage WM. -S. COOPER.

Witnesses:

A. B. BEAMISH, OWEN Jones.

